runtime‑macros

Procedural macros used by the runtime project to generate RPC stubs, strongly‑typed message‑handlers, and boilerplate for object references at compile‑time.
They contain no runtime logic – their sole purpose is to expand user‑written async functions and impl blocks into the code required for inter‑runtime communication.

What it generates

• A [MessageHandler] implementation that the runtime can dispatch.
• Input and Output structs that implement [TypeInfo] for binary serialization.
• A tiny, ergonomic forwarding stub that performs the actual RPC call.

The generated pieces are completely hidden from the end‑user, giving them a clean API while retaining full type‑safety over the wire.

Usage

Put async functions or methods inside an rpc! { ... } block:

rpc! {
    async fn add(a: i32, b: i32) -> i32 {
        a + b
    }
}
```.